1400645545 has 32 divisors (see below), whose sum is σ = 1890685440. Its totient is φ = 989210880.

The previous prime is 1400645527. The next prime is 1400645549. The reversal of 1400645545 is 5455460041.

It is not a de Polignac number, because 1400645545 - 2⁷ = 1400645417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400645545.

It is not an unprimeable number, because it can be changed into a prime (1400645549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136960 + ... + 146830.

It is an arithmetic number, because the mean of its divisors is an integer number (59083920).

Almost surely, 2^1400645545 is an apocalyptic number.

It is an amenable number.

1400645545 is a deficient number, since it is larger than the sum of its proper divisors (490039895).

1400645545 is a wasteful number, since it uses less digits than its factorization.

1400645545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9985.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 1400645545 is about 37425.1993314665. The cubic root of 1400645545 is about 1118.8608594824.

The spelling of 1400645545 in words is "one billion, four hundred million, six hundred forty-five thousand, five hundred forty-five".